Update swift.yml

Author: Joannis

.github/workflows/swift.yml

@@ -16,8 +16,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        swift-version: ["5.9", "5.10", "6.0"]
-        mongodb-version: ["4.4", "5.0", "6.0", "7.0"]
+        swift-version: ["5.10", "6.0"]
+        mongodb-version: ["4.4", "5.0", "6.0"]
     steps:
       - name: Check out
         uses: actions/checkout@v3